The US Flag code suggests that the American Flag should be illuminated at night. The solar light is specially designed to automatically take care of the illumination of your flag every night, without any intervention from your part. As a result, you are not required any longer to lower the flag at sunset. The Flagpole Solar Lights not only give you the opportunity to show your patriotism, they are a quick, safe, easy and affordable system to highlight your flags. Please Note: The amount of time that this light stays lit depends on the amount of sun that it gets. On sunny days when the light receives a lot of sun it should stay lit a couple of hours. On darker days or during the winter when there is not as much sunlight this light will not stay illuminated for long periods of time. Online Stores Solar Flagpole Light #FLGFACC1000013574 - Patio Accessories